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People living with HIV are particularly susceptible to developing metabolic disorders, including metabolic dysfunction-associated steatotic liver disease and other forms of SLD. However, people living with HIV have been historically excluded from clinical trials and large cohort studies of SLD. Therefore, our understanding of the risk factors and natural history of SLD in this population is poor. Moreover, relevant knowledge gaps on the epidemiology and barriers for adequate health care, such as stigma, hamper adequate responses to the ongoing HIV and SLD syndemic. This Viewpoint provides a comprehensive perspective on how to tackle SLD in people living with HIV by examining the role of social determinants of health in the development of liver disease and metabolic syndrome comorbidities among this population, emphasising the importance of prioritising SLD management, summarising the most urgent needs in the field, and offering recommendations for advancing research to fill key data gaps and protect liver health of people living with HIV., Competing Interests: Declaration of interests JMP reports having received consulting fees from Boehringer Ingelheim, MSD and Novo Nordisk. He has received speaking fees from Gilead, Intercept, and Novo Nordisk, and travel expenses from Gilead, Rubió, Pfizer, Astellas, MSD, CUBICIN, and Novo Nordisk. He has received educational and research support from Madrigal, Gilead, Pfizer, Astellas, Accelerate, Novartis, AbbVie, ViiV, and MSD. CR reports honoraria for speaking activities from ViiV Healthcare. GG reports speaking fees from ViiV Healthcare. AB acknowledges having received consulting fees from Boehringer Ingelheim and speaking fees by GE Healthcare and Hologic. GW received research grants from Gilead Sciences and Roche Diagnostics. MBB has received grant support from National Institute of Health, US Centers for Disease Control and Prevention/National Institute for Occupational Safety and Health, Pfizer, The Kinetix Group, Histoindex, and serves as a consultant for The Kinetix Group, Madrigal, Pfizer, Theratechnologies, Fibronostics, Novo Nordisk, and GSK. JN has received honoraria, speaking fees, and financial support for attending conferences from AbbVie, Gilead Sciences, Janssen-Cilag, Merck Sharp & Dohme, and ViiV Healthcare, and consulting fees from ViiV Healthcare, Gilead Sciences, Janssen Cilag, and Merck Sharp & Dohme, outside the submitted work. JVL acknowledges grants from AbbVie, Boehringer Ingelheim, Echosens, Gilead Sciences, Madrigal, MSD, Novo Nordisk, Pfizer, and Roche Diagnostics; speaker fees from AbbVie, Echosens, Gilead Sciences, Janssen, Moderna, MSD, Novo Nordisk, and Pfizer; and consulting fees from Echosens, NovoVax, GSK, Novo Nordisk, and Pfizer, all outside the current work. JVL also acknowledges participation on the advisory board for the “Same-visit hepatitis C testing and treatment to accelerate cure among people who inject drugs (The QuickStart Study): a cluster randomised control trial–Australia” trial; had roles in the following committees: Member, European Association for the Study of the Liver, Public Health and Policy Committee; Healthy Livers, Health Livers (formed by AASLD, ALEH, APASL, European Association for the Study of the Liver) Global NASH Council; and was the Co-chair of HIV Outcomes. All other authors declare no competing interests., (Copyright © 2024 Elsevier Ltd. All rights reserved, including those for text and data mining, AI training, and similar technologies.)

Competing Interests: GG and CM received research grant and speaker honorariums from Gilead, ViiV, Merck, and Janssen. GG and CM attended advisory boards for Gilead, ViiV, and Merck. We thank Jovana Milic for drawing the table.

WHO defines ageism as stereotypes, prejudice, and discrimination based on age. Ageism is a multidimensional concept that encompasses multiple components related to the individual, the social group, and the institution in different cultural and environmental settings. In people ageing with HIV these elements include self-stigma, discrimination in society, and experiences in care, many of which are unique to older people. In this Position Paper, we use experience of people with HIV and clinicians taking care of them to explore these issues in high-income countries. The intersectionality of multiple -isms, which affect the lives of older people living with HIV, and ageism enhance several HIV-related issues, including self-inflicted stigma, and loneliness. Research is needed to explore how ageism contributes to worse physical, mental, and social wellbeing outcomes for people with HIV. The model of care for older people living with HIV needs to go beyond virological success by adopting a geriatric mindset, which is attentive to the challenge of ageism and is proactive in promoting a comprehensive approach for the ageing population. All stakeholders and the community should work together to co-create institutional strategies and educational programmes and enable respectful intergenerational dialogue to foster a stigma-free future for older people living with HIV., Competing Interests: Declaration of interests GG received research grants and speaker honorarium from Gilead, ViiV, MERCK, and Jansen and attended advisory boards of Gilead, ViiV, and MERCK. JM received speaker honoraria from Gilead and ViiV. MCa attended advisory boards for ViiV and received speaker honoraria from Gilead. EM received research grants from Merck Sharp & Dohme and ViiV; attended advisory boards for Janssen, Gilead, Merck Sharp & Dohme, and ViiV; and received speaker honoraria from Gilead and ViiV. JF received speaker honorarium from ViiV. CO received research grants from Gilead, GSK, ViiV, Merck Sharp & Dohme, AstraZeneca, and Janssen; speaker honoraria from Gilead, GSK, ViiV, Merck Sharp & Dohme, and Janssen; and support for attending meetings from Gilead and ViiV. JVL reports grants to his institution from AbbVie, Gilead, Roche Diagnostics, and Merck Sharp & Dohme and speaker honoraria from AbbVie, Gilead, Intercept, Janssen, and Novo Nordisk. JL, DC, RM, MCe, and CM declare no competing interests., (Copyright © 2024 Elsevier Ltd. All rights reserved.)

Competing Interests: CM reports grants and travel support from Gilead, personal fees from ViiV Healthcare, and participation on advisory boards from CORIMUNO, ViiV Healthcare, ROCHE, Janssen, Gilead Sciences, and Merck Sharp & Dohme. GG reports grants, personal fees, travel support, and participation on advisory boards from Gilead Sciences, ViiV Healthcare, and Merck Sharp & Dohme, and personal fees from Janssen. CO reports grants, personal fees, and travel sponsorship from ViiV Healthcare, and grants and personal fees from GlaxoSmithKline, Gilead Sciences, Merck Sharp & Dohme, Janssen, and AstraZeneca.

Background: Since the introduction of effective antiretroviral therapy, liver-related mortality has increased ten-fold in ageing people with HIV. This trend is driven by ageing-related metabolic conditions that cause non-alcoholic fatty liver disease (NAFLD), which affects 35-65% of people with HIV. Clinically significant (stage 2-4) liver fibrosis develops in over 15% of people with HIV who have NAFLD. Strategies are needed to identify people with HIV at risk for significant liver fibrosis and reduce cirrhosis-related complications. Non-invasive tests to diagnose liver fibrosis include ultrasound-based transient elastography and serum biomarkers. Transient elastography is a feasible tool to assess liver fibrosis, but it is not largely accessible in HIV clinics. We aimed to determine whether a two-tier care pathway with assessment of simple serum biomarkers for fibrosis as first tier could reduce the need for the specialist transient elastography test (second tier)., Methods: Patients were consecutively identified through a clinical programme for liver disease in people with HIV in Canada and Italy. We applied a two-tier care pathway to three prospective cohorts of people with HIV at risk for NAFLD, defined as those with elevated liver transaminases, body mass index (BMI) of 25 or greater, or diabetes. Patients with alcohol abuse or coinfection with hepatitis B or C viruses were excluded. Five simple serum biomarkers of fibrosis, based on liver transaminases, platelets, and BMI (fibrosis-4 index [FIB-4], BARD [BMI, AST to ALT ratio, diabetes] score, NAFLD fibrosis score, AST to ALT ratio, and AST-to-platelet ratio index [APRI]) were applied as a first-tier assessment to exclude significant liver fibrosis. All patients then received transient elastography. We assessed the decrease in referral for transient elastography that would have occurred based on biomarker assessment and discordance between high transient elastography (≥7·1 kPa), indicating significant liver fibrosis, and low serum fibrosis biomarkers (FIB-4 <1·3, BARD score 0-1, NAFLD fibrosis score less than -1·455, AST to ALT ratio <0·8, and APRI <0·5). We also assessed independent factors associated with that discordance by multivariable logistic regression analysis., Findings: We included 1202 people with HIV at risk for NAFLD (mean age 51·2 years [SD 10·1], 914 [76%] male and 288 [24%] female, mean HIV duration 16·3 years [SE 9·7], mean BMI 26·5 Kg/m 2 [SD 4·5]; prevalence of diabetes 49·5%). 222 (18·5%) of these participants had significant liver fibrosis according to transient elastography. Assessment of simple fibrosis biomarkers would have decreased transient elastography referrals between 22·5% (BARD score) and 82·4% (APRI). Discordance rate ranged from 3·9% (NAFLD fibrosis score) to 11·1% (APRI). After adjustment for age, sex, presence of diabetes, level of HDL cholesterol, and CD4 cell count, BMI (odds ratio 1·12, 95% CI 1·07-1·17) and triglyceride level (1·25, 1·08-1·46) were independent predictors of discordance for low APRI and high transient elastography., Interpretation: Use of a two-tier pathway to identify liver fibrosis in ageing people with HIV at risk for NAFLD could reduce transient elastography examinations by a substantial proportion, reducing costs and helping to optimise use of resources in HIV care., Funding: GS is supported by a Senior Salary Award from Fonds de recherche du Québec-Santé (number 296306)., (Copyright © 2022 Elsevier Ltd. All rights reserved.)

Background: Weight gain effects of individual antiretroviral drugs are not fully understood. We investigated associations between a prespecified clinically significant increase (>7%) in body-mass index (BMI) and contemporary antiretroviral use., Methods: The International Cohort Consortium of Infectious Diseases (RESPOND) is a prospective, multicohort collaboration, including data from 17 well established cohorts and over 29 000 people living with HIV. People with HIV under prospective follow-up from Jan 1, 2012, and older than 18 years were eligible for inclusion. Each cohort contributed a predefined minimum number of participants related to the size of the specific cohort (with a minimum of 1000 participants). Participants were required to have CD4 cell counts and HIV viral load measurement in the 12 months before or within 3 months after baseline. For all antiretroviral drugs received at or after RESPOND entry, changes from pre-antiretroviral BMI levels (baseline) were considered at each BMI measurement during antiretroviral treatment. We used logistic regression to identify individual antiretrovirals that were associated with first occurrence of a more than 7% increase in BMI from pre-antiretroviral BMI. We adjusted analyses for time on antiretrovirals, pre-antiretroviral BMI, demographics, geographical region, CD4 cell count, viral load, smoking status, and AIDS at baseline., Results: 14 703 people were included in this study, of whom 7863 (53·5%) had a more than 7% increase in BMI. Compared with lamivudine, use of dolutegravir (odds ratio [OR] 1·27, 95% CI 1·17-1·38), raltegravir (1·37, 1·20-1·56), and tenofovir alafenamide (1·38, 1·22-1·35) was significantly associated with a more than 7% BMI increase, as was low pre-antiretroviral BMI (2·10, 1·91-2·31 for underweight vs healthy weight) and Black ethnicity (1·61, 1·47-1·76 vs White ethnicity). Higher CD4 count was associated with a reduced risk of BMI increase (0·97, 0·96-0·98 per 100 cells per μL increase). Relative to lamivudine, dolutegravir without tenofovir alafenamide (OR 1·21, 95% CI 1·19-1·32) and tenofovir alafenamide without dolutegravir (1·33, 1·15-1·53) remained independently associated with a more than 7% increase in BMI; the associations were higher when dolutegravir and tenofovir alafenamide were used concomitantly (1·79, 1·52-2·11, and 1·70, 1·44-2·01, respectively)., Interpretation: Clinicians and people with HIV should be aware of associations between weight gain and use of dolutegravir, tenofovir alafenamide, and raltegravir, particularly given the potential consequences of weight gain, such as insulin resistance, dyslipidaemia, and hypertension., Funding: The CHU St Pierre Brussels HIV Cohort, The Austrian HIV Cohort Study, The Australian HIV Observational Database, The AIDS Therapy Evaluation in the Netherlands national observational HIV cohort, The EuroSIDA cohort, The Frankfurt HIV Cohort Study, The Georgian National AIDS Health Information System, The Nice HIV Cohort, The ICONA Foundation, The Modena HIV Cohort, The PISCIS Cohort Study, The Swiss HIV Cohort Study, The Swedish InfCare HIV Cohort, The Royal Free HIV Cohort Study, The San Raffaele Scientific Institute, The University Hospital Bonn HIV Cohort and The University of Cologne HIV Cohorts, ViiV Healthcare, and Gilead Sciences., Competing Interests: Declaration of interests JMM received a personal 80:20 research grant from Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain, during 2017–21. JMM also reports grants and personal fees from AbbVie, Angelini, Contrafect, Cubist, Genentech, Gilead Sciences, Jansen, Lysovant, Medtronic, MSD, Novartis, Pfizer, and ViiV Healthcare, outside the submitted work. DLB reports honoraria from ViiV Healthcare, Gilead Sciences, and Merck, outside the submitted work. OK reports personal fees from Gilead Sciences, ViiV Healthcare, and Merck, outside the submitted work. ML reports grants from Gilead Sciences, Janssen-Cilag, and ViiV Healthcare, outside the submitted work. JH reports reimbursement to their institute from Gilead Sciences, ViiV Healthcare, and MSD, outside the submitted work. HFG reports grants from the Swiss National Science Foundation, National Institutes of Health (NIH), and the Swiss HIV Cohort Study, unrestricted research grants from Gilead Sciences, Roche, and Yvonne Jacob Foundation, personal fees from consulting or advisory boards or data safety monitoring boards for Merck, Gilead Sciences, ViiV Healthcare, Mepha, and Sandoz. HFG's institution received money for participation in the following clinical COVID-19 studies: 540-7773/5774 (Gilead), TICO (ACTIV-3, INSIGHT/NIH), and the Morningsky study (Roche). CSt reports personal fees and non-financial support from Gilead Sciences, ViiV Healthcare, and Janssen, outside the submitted work. VV is a salaried employee of ViiV Healthcare and receives GlaxoSmithKline stock. CD reports grants and personal fees from MSD, Gilead Sciences, and ViiV Healthcare, outside the submitted work. SDW reports grants from Gilead Sciences, MSD, Janssen, and ViiV Healthcare, outside the submitted work. FW reports membership of advisory boards for ViiV Healthcare and Gilead Sciences. JL reports personal fees from ViiV Healthcare, Gilead Sciences, and Janssen Cilag, outside the submitted work. CSm reports personal fees from Gilead Sciences, outside the submitted work. AdM reports grants from Gilead Sciences and ViiV Healthcare, during the conduct of the study, and personal fees from ViiV Healthcare, Gilead Sciences, Eiland, and Bonnin, outside the submitted work. NC reports personal fees from Virology Education, outside the submitted work. CO reports personal fees from ViiV Healthcare, Neola, and MSD, outside the submitted work. CO is also an elected member of the European AIDS Society governing body and of the EuroSIDA Steering Committee. JJV reports personal fees from MSD, Gilead Sciences, Pfizer, Astellas Pharma, Basilea, German Centre for Infection Research, University Hospital Freiburg, Congress and Communication, Academy for Infectious Medicine, University of Manchester, German Society for Infectious Diseases, Arztekammer Nordrhein, University Hospital Aachen, Back Bay Strategies, German Society for Internal Medicine, Shionogi, Molecular Health, Netzwerk Universitätsmedizin, Janssen, and NordForsk, and grants from MSD, Gilead Sciences, Pfizer, Astellas Pharma, Basilea, German Centre for Infection Research, German Federal Ministry of Education and Research, University of Bristol, and Rigshospitalet Copenhagen. JG is a paid employee of Gilead Sciences. ND reports he is a board member of non-governmental associations and initiatives (not for profit) that receive financial support from pharmaceutical companies and foundations for various projects. Those that have contributed are: GlaxoSmithKline, ViiV Healthcare, AbbVie, BMS, Gilead, Janssen-Cilag, MSD, AIDS Healthcare Foundation, Positive Action, Novartis, Roche, Mylam ELPEN, Cepheid, IPSEN, AstraZeneca, Amgen, Bayer, Pamaserve-Lilly, Roche Diagnostics, Sanofi, Pfizer, Theratechnologies, Vianex, Boehringer-Ingelheim, Chiesi, Takeda, and Leo Pharma. All other authors declare no competing interests., (Copyright © 2021 Elsevier Ltd. All rights reserved.)